Open Source Repository

/** Licensed to the Apache Software Foundation (ASF) under one or more* contributor license agreements. See the NOTICE file distributed with* this work for additional information regarding copyright ownership.* The ASF licenses this file to You under the Apache License, Version 2.0* (the "License"); you may not use this file except in compliance with* the License. You may obtain a copy of the License at** http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/package org.apache.commons.jxpath.ri.compiler;import org.apache.commons.jxpath.ri.EvalContext;import org.apache.commons.jxpath.ri.InfoSetUtil;/*** Implementation of {@link Expression} for the operation "+".** @author Dmitri Plotnikov* @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $*/public class CoreOperationAdd extends CoreOperation {/*** Create a new CoreOperationAdd.* @param args Expression arguments to add together.*/public CoreOperationAdd(Expression[] args) {super(args);}public Object computeValue(EvalContext context) {double s = 0.0;for (int i = 0; i < args.length; i++) {s += InfoSetUtil.doubleValue(args[i].computeValue(context));}return new Double(s);}protected int getPrecedence() {return ADD_PRECEDENCE;}protected boolean isSymmetric() {return true;}public String getSymbol() {return "+";}}